National Element, Inc.

Steel construction belts from National Element are especially adaptable to conveying heavy, rough or sharp material. An assembled belt consists of hinged links, side wings, tubes, thru pins and dual strands of roller chain. The hinged links are assembled in horizontal rows by passing the tube through the hinges. The thru pins are inserted into the tube and fastened into the side chains thus supporting the links and causing the chain to take all the tension.BushingsSteel bushings = 15-18% coefficient of frictionNylatron bearings = 10-13% coefficient of frictionRoller bearings= 4-5% coefficient of friction Steel LinksStandard plain steel links precision welded in widths of :24 ( 18 thick flat top and piano hinge plate belts)6 (316 belt)12 ( belt) HingesHinges formed in 1-12 3 increments on the link to allow special belt widths of the same 1-12 increment. Side wingsSide wings interlocked and afford continuous overlapping through bends and over the sprockets. Mig welding to the belt prevents thin pieces of material from getting under the wing.Standard sizes:18 thick x 1-12 for 2-12 pitch18 thick x 2-12 for 4 pitch316 thick x 3 or 4 for 6 pitch316 thick x 4 or 6 for 9 pitch TubesThe tubes are .760 I.D. x .970 O.D. steel running through the hinges for the complete belt width and rotates on the thru pin for a better bearing area. Maintenance is easy because it is not necessary to disconnect the belt at a hinge point to remove a pin. It is the tube that holds the belt together. Pins12 dia. thru pin with milled ends and 532 S pin34 dia. pin with milled ends and 14 cotter pinheavy-duty belt pin with milled and threaded ends and 34 lock nut34 dia. split pins for easy maintenance in tight spacesPin, tube and hinge provides a 1-12 thick heavy-duty joint